Home / 20,664.75-30,996.07-5,871.72

Finding the Fourth Proportional to 20,664.75, 30,996.07 and 5,871.72

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Solution

The fourth proportional to 20,664.75, 30,996.07 and 5,871.72 is: 8,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.75 : 30,996.07 = 5,871.72 : x
  2. Step 2: Convert to fraction form
    20,664.75/30,996.07 = 5,871.72/x
  3. Step 3: Cross multiply
    20,664.75x = 30,996.07 × 5,871.72
  4. Step 4: Simplify right side
    20,664.75x = 182,000,345.70
  5. Step 5: Solve for x
    x = 182,000,345.70/20,664.75
  6. Step 6: Final answer
    x = 8,807.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.